Oils and proteins Flashcards

1
Q

Why are Omega 3 and Omega 6 named that way and what type of oils are they?

A

These are polyunsaturated fats and Omega 3 has a double bond 3 carbons from the end and Omega 6 has a double bond 6 carbons from the end

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2
Q

What are the 3 types of Omega 3 oils and where do we get them from?

A

ALA a-linilenic acid is from flax seeds, walnuts and green leafy veg
EPA and DHA are in oily fish

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3
Q

What are the 3 types of Omega 6 oils and where do we get them from?

A

LA linolenic acid from sunflower seeds
GLA gamma linolenic acid from evening primrose oil
AAarachidonic acid from meat, dairy, eggs

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4
Q

Why do we need a balance of Omega 3 and 6?

A

Because Omega 6 is high in western diet and can be inflammatory, Omega 3 is anti-inflammatory

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5
Q

What are the 6 functions of EFAs?

A
fluidity and structure of cell membrane
joint lubrication
make haemoglobin
generates electric current to maintain regular heart rate
balance immune system
transports cholesterol
supports production of digestive enzymes
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6
Q

How do you store oils to prevents free radicals?

A

Oils are damagesd by light, heat and oxygen so store in cool, dark place sealed, preferably in glass bottle

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7
Q

How do fats move around the body more easily?

A

They attach to a protein to become lipoproteins LDL and HDL

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8
Q

What is the purpose of LDL?

A

LDL moves cholesterol from the liver to the cells

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9
Q

What is the purpose of HDL?

A

HDL collects cholesterol from cells and brings int back to liver.

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10
Q

What happens if there’s too much LDL and not enough HDL?

A

This inbalance means that cholesterol cannot be transported back to the liver and too much circulating in the body.

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11
Q

What are steroids?

A

Lipids made from cholesterol used to make hormones such as oestrogen, testosterone and cortisol

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12
Q

What are the building blocks for proteins?

A

Amino acids

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13
Q

How many amino acids does the body need?

A

20

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14
Q

What 4 elements can be found in proteins?

A

Carbon, Hydrogen, Nitrogen and Oxygen

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15
Q

What is formed when amino acids join togethr?

A

Peptides

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16
Q

Name a dipeptide and whether this is beneficial or harmful

A

aspartame, it’s a neurotoxin and harmful

17
Q

Name a tripeptide and name the 3 amino acids it contains

A

Glutathione - power antioxidant contains L-cysteine, L-glutamate and Glycine

18
Q

How can you boost your L-cysteine levels?

A

Eat eggs, legumes and sunflower seeds

19
Q

What are the 10 functions of proteins? Think suffix -in

A
Tissue structure - collagen
Immunity (antibodies)
Hormones (insulin)
Movement (actin and mysin)
Alternative energy source (not efficient)
storage molecules (ferritin)
Carrier molecules (haemoglobin)
Fluid balance (albumin)
Clotting factors
20
Q

Name 5 proteins

A
Albumin
Insulin
Ferritin
Haemoglobin
Collagen
Actin
Mysin
21
Q

What is denaturation?

A

When the 3d structure of the protein unfolds and can’t function properly

22
Q

How does denaturation occur?

A

heat (egg whites)

heavy metals - use coriander and chorella to remove metals from the body

23
Q

What is gene expression?

A

The body’s ability to copy a gene and make new protein

24
Q

What can positively influence gene expression?

A

metabolites of Vit A, Vit D, EFAs, zinc and fibre

25
Q

What can negatively influence gene expression?

A

An acidic, glucose reich, anaerobic environment caused by lack of oxygen (exercise), stress, processed foods, drugs and radiation

26
Q

What would be the best environment for gene expression

A

Diet high in Vit A, Vit D, zinc, EFAs and fibre, plenty of exercise, fresh foods, no toxins, relaxation, no sugar

27
Q

Which enzyme is required to turn B9 folate into a form for methylation and why is it important?

A

MTHFR - can lead to high levels of homocysteine linked with heart disease and dementia. Worth taking active methylfolate supplement if you have MTHFR mutation

28
Q

As well as converting folate to methylfolate to metabolise homocycsteine, what else is methylation required for?

A

Removing metals like mercury from the body